CN209307048U - Water Purifier - Google Patents

Abstract

The utility model discloses a water purifier. The water purifier comprises: a composite filter element, a water inlet pipe, a waste water pipe, a pure water pipe, a booster pump, a water inlet valve and a waste water valve. The composite filter element includes a housing, a central liquid separation membrane tube group, a waterway conversion cover group and a post-filter. The central liquid separation membrane tube group is formed by winding the central tube group with a plurality of membrane bags, and the central tube group includes a central tube and a plurality of waste water headers. The waterway conversion cover group is provided with a waste water diversion channel and a filtered water diversion channel. The waste water diversion channel is respectively connected to the waste water header and the waste water outlet on the housing, and the filtered water diversion channel is respectively connected to the central pipe and the pure Water outlet. The rear filter element is arranged in the filtered water guide channel. According to the water purifier of the embodiment of the utility model, through the flow path design of the composite filter element, the water system of the water purifier can be simplified, the water purification and filtration efficiency of the water purifier can be improved, and the water purification and filtration effect of the water purifier can be improved.

Description

Water Purifier

technical field

The utility model relates to the technical field of water purification, in particular to a water purifier.

Background technique

In related technologies, water purification equipment uses PP cotton, activated carbon, etc. as pre-filter elements, and then connects RO filter elements in series to form a water system connected by multi-stage filter elements for water purification. The pipeline connection of the whole system is complicated, installation and replacement are inconvenient, multi-joint connection, and many risk points of water leakage. More importantly, the service life of multi-stage filter elements is inconsistent. Consumers need to replace as many as three to five filter elements. Frequent purchase of filter elements is required and professional installers need to replace them. The consumer experience is poor and the overall cost is high.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. For this reason, the utility model proposes a water purifier, the water purifier has a simple water system, high water purification and filtration efficiency, and good water purification and filtration effect.

The water purifier according to the embodiment of the utility model includes a composite filter element, a water inlet pipe, a waste water pipe, a pure water pipe, a booster pump, a water inlet valve and a waste water valve, and the composite filter element includes a housing, a central liquid separation membrane tube group , a waterway conversion cover group and a rear filter element, the housing is provided with a raw water inlet, a pure water outlet and a waste water outlet; the central liquid separation membrane tube group is set in the housing, and the central liquid separation membrane A raw water flow channel is defined between the outer peripheral wall of the group and the housing, and the raw water inlet is connected to the raw water flow channel. The central liquid separation membrane tube group includes: a central tube group and a plurality of diaphragm bags. The central pipe set includes a central pipe and a plurality of waste water headers arranged at intervals, a plurality of waste water headers are arranged around the central pipe, and a filter water inlet hole is provided on the pipe wall of the central pipe, and the waste water collection pipes A waste water inlet hole is provided on the pipe wall, and the membrane bag has a first part located inside the central tube group and a second part located outside the central tube group, each of the waste water header and the The central tube is separated by at least one first portion of the film bag, and the second portions of the plurality of film bags form a multi-layer film assembly surrounding the group of central tubes, and the central tube defines Out of the filtered water flow chamber, the waste water manifold defines a waste water flow chamber; the waterway conversion cover group is arranged in the housing, and the waterway conversion cover group is provided with a waste water diversion channel and a filtered water diversion channel, The two ends of the waste water diversion channel are respectively connected to the waste water flow chamber and the waste water outlet, and the two ends of the filtered water flow guide are respectively connected to the filtered water flow chamber and the pure water outlet. The filter element is set in the filtered water guide channel, the water inlet pipe is connected to the raw water inlet on the housing, the waste water pipe is connected to the waste water outlet on the housing, and the pure water pipe Connect the pure water outlet on the housing, the booster pump is connected in series to the water inlet pipe, the water inlet valve is connected in series to the water inlet pipe, and the waste water valve is connected in series to the water inlet pipe. on the waste pipe.

According to the water purifier of the embodiment of the utility model, through the design of the flow channel of the composite filter element, water can pass through the membrane radially, which improves the purification and filtration efficiency of the composite filter element for water, and realizes the purpose of large-flux water purification. Water can be purified and filtered multiple times in the composite filter element, which can improve the purification and filtration effect of water. The composite filter element is integrated into one core, which is easy to replace. Through the design of the flow channel of the water purifier, the water purifier can have a relatively simple water system. Simple control and convenient operation.

In addition, the water purifier according to the utility model can also have the following additional technical features:

In some embodiments of the present utility model, the water purifier further includes a pre-filter connected in series to the water inlet pipe.

In some examples of the present invention, the pre-filter is connected upstream of the water inlet valve.

In some examples of the present utility model, the pre-filter includes: a pre-filter housing and a filter screen, the pre-filter housing can be opened and closed, and the filter screen is detachably arranged in the pre-filter housing .

In some embodiments of the present utility model, the water purifier further includes a high-pressure switch connected in series to the pure water pipe, and the high-pressure switch is electrically connected to the water inlet valve.

In some embodiments of the present utility model, the water purifier further includes a one-way valve connected in series to the pure water pipe.

In some embodiments of the present invention, the water purifier further includes a faucet connected to the end of the pure water pipe.

In some embodiments of the present utility model, the waste water valve is an adjustable waste water valve, and the waste water valve is cumulative flushing or standby flushing.

In some embodiments of the present utility model, the waterway conversion cover set includes: a waterway conversion inlet cover, the waterway conversion inlet cover is at the end of the central liquid separation membrane tube group, and the waterway conversion inlet cover is There is a waste water inlet connected to the waste water flow chamber and a filtered water inlet connected to the filtered water flow chamber; the inner outlet cover of the waterway conversion, the inner outlet cover of the waterway conversion is covered on the inlet cover of the waterway conversion, the The filtered water guide channel is defined between the waterway conversion inner outlet cover and the waterway conversion inlet cover, and the waterway conversion inner outlet cover is provided with an inner cover opening connecting the pure water outlet; the waterway conversion outer outlet cover, The waterway conversion outward cover is covered on the waterway conversion inner outlet cover, the outer periphery of the waterway conversion outer cover is connected with the waterway conversion inlet cover, the waterway conversion outer cover, the waterway conversion inner outlet cover and The waste water guide channel is defined between the water channel conversion inlet cover, and an outer cover opening connected to the waste water outlet is defined between the water channel conversion outer cover and the water channel conversion inner outlet cover.

In some embodiments of the present utility model, the membrane bag is a reverse osmosis membrane, and a pre-filter cartridge is rolled on the outside of the multi-layer membrane assembly rolled by the reverse osmosis membrane.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a water purifier according to an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of an embodiment of a composite filter element according to an embodiment of the present invention;

Fig. 3 is the partial structure enlarged view of another embodiment of the composite filter element of the present invention;

Fig. 4 is a schematic top view of a composite filter element according to an embodiment of the present invention;

Fig. 5 is a schematic cross-sectional view of the central liquid-separating membrane tube set with covers at both ends according to an embodiment of the present invention, wherein the spiral-wound structure of the multi-layer membrane assembly is drawn as a cylinder by omitting the drawing method;

Fig. 6 is a schematic diagram of the three-dimensional structure of the central tube group according to an embodiment of the present invention;

Fig. 7 is a top view of a diaphragm bag, a central pipe, and a waste water header in an embodiment of the present invention;

Fig. 8 is a schematic top view of the central liquid separation membrane tube group of an embodiment of the present invention;

Fig. 9 is a schematic structural view of a waterway conversion inlet cover according to an embodiment of the present invention;

Fig. 10 is a schematic cross-sectional view of a waterway conversion inlet cover according to an embodiment of the present invention;

Fig. 11 is a schematic bottom view of a waterway conversion access cover according to an embodiment of the present invention;

Fig. 12 is a schematic top view of a water channel conversion access cover according to an embodiment of the present invention.

Reference signs:

Water purifier 1000,

Composite filter element 100,

Shell 1, bottle body 11, bottle cap 12, raw water inlet 121, pure water outlet 122, waste water outlet 123, inner connecting pipe 124, outer connecting pipe 125, sealing ring 128, raw water flow channel 101,

Central liquid membrane tube group 2, central tube group 20,

Central pipe 21, filtered water inlet hole 211, filtered water flow chamber 210,

Waste water manifold 22, waste water inlet 221, waste water circulation chamber 220,

Diaphragm bag 23, pre-filter 24,

Waterway conversion cover group 4, waterway conversion inlet cover 41, inlet half cylinder 411, outlet half cylinder 412, cylinder connecting pipe 413, waterway conversion inner outlet cover 42, inner end pipe 421, waterway conversion outer outlet cover 43, Outer end pipe 431, inner cover opening 44, outer cover opening 45, waste water diversion channel 46, filtered water diversion channel 47,

Wastewater connection 5, waste water inlet 51, filtered water connection 6, filtered water inlet 61, filtered water outlet 62,

Rear filter element 7, sealing plate 9, plug 91,

Water inlet pipe 301, waste water pipe 302, pure water pipe 303, booster pump 304, water inlet valve 305, waste water valve 306, pre-filter 307, high pressure switch 308, one-way valve 309, faucet 300.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "radial", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description The present invention and simplified description do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention.

The following describes a water purifier 1000 according to an embodiment of the present invention with reference to FIGS. 1-12 .

As shown in FIG. 1 , a water purifier 1000 according to an embodiment of the present invention includes a composite filter element 100 , a water inlet pipe 301 , a waste water pipe 302 , a pure water pipe 303 , a booster pump 304 , a water inlet valve 305 and a waste water valve 306 .

The composite filter element 100 is the main part of water purification. As shown in Figures 2 and 3, the composite filter element 100 includes a housing 1, a central liquid separation membrane tube group 2, a waterway conversion cover group 4 and a rear filter element 7, and the housing 1 is provided with a raw water inlet 121, pure water outlet 122 and waste water outlet 123.

The central liquid separation membrane tube group 2, the water channel conversion cover group 4 and the rear filter element 7 are all arranged in the housing 1, and the housing 1 constitutes the overall packaging structure of the composite filter element 100, and has the functions of supporting, protecting, positioning, and function of the installation. There are many structural forms of the housing 1. In the example shown in FIG. 11. In this example, as shown in FIG. 4 , the raw water inlet 121 , the pure water outlet 122 and the waste water outlet 123 are all provided on the bottle cap 12 . In other embodiments, the bottle body 11 can be opened at both ends and there are two bottle caps 12, or the entire shell 1 is formed as a structure split from the middle, and at this time, the shell 1 only includes two half shells, which are not described here. limit.

As shown in FIG. 2 , a raw water flow channel 101 is defined between the outer peripheral wall of the central liquid separation membrane tube set 2 and the inner wall of the housing 1 , and the raw water inlet 121 communicates with the raw water flow channel 101 .

As shown in Figures 5-8, the central liquid separation membrane tube group 2 includes: a central tube group 20 and a plurality of membrane bags 23, and the central tube group 20 includes a central tube 21 and a plurality of spaced apart waste water headers 22, A plurality of waste water headers 22 are arranged around the central pipe 21 . The pipe wall of the central pipe 21 is provided with a filtered water inlet hole 211, and the pipe wall of the waste water header 22 is provided with a waste water inlet hole 221. The second part of the exterior, each waste water header 22 and the central pipe 21 is separated by a first part of at least one membrane bag 23, the second part of a plurality of membrane bags 23 forms a plurality of membrane bags around the periphery of the central pipe group 20. Layer film components. The central pipe 21 defines a filtered water flow cavity 210 communicating with the filtered water inlet 211 , and the wastewater header 22 defines a wastewater flow cavity 220 communicated with the wastewater inlet 221 . That is, the raw water that enters through the raw water inlet 121 flows from the raw water flow channel 101 to the outer peripheral side of the central liquid separation membrane tube group 2. The filtered water flows into the central pipe 21 from the filtered water inlet hole 211 and collects in the filtered water flow chamber 210, while the waste water that does not pass through the membrane bag 23 flows into the waste water header 22 from the waste water inlet hole 221 and collects into the waste water In the flow chamber 220.

As shown in FIG. 3 , the water channel conversion cover set 4 covers one axial end of the central liquid separation membrane tube set 2 , and the rear filter element 7 is arranged in the water channel conversion cover set 4 . Of course, in some embodiments of the present utility model, there can also be two waterway conversion cover groups 4 and they are respectively covered on the axial ends of the central liquid separation membrane tube group 2. Here, only one waterway conversion cover group 4 is used. The situation will be described, and the situation that the waterway switching cover group 4 is set at both ends can be directly derived from this, and will not be repeated.

Specifically, as shown in Figure 3, the waterway conversion cover group 4 is provided with a waste water diversion channel 46 and a filtered water diversion channel 47, and the two ends of the waste water diversion channel 46 are respectively connected to the waste water flow chamber 220 and the waste water outlet 123, and the filter Both ends of the water guiding channel 47 are respectively connected to the filtered water flow chamber 210 and the pure water outlet 122 , and the rear filter element 7 is arranged in the filtered water channel 47 .

That is to say, after the raw water is filtered and separated by the central liquid separation membrane tube group 2, the obtained filtered water flows into the filtered water guide channel 47 of the waterway conversion cover group 4, and the obtained waste water flows into the waste water guide of the waterway conversion cover group 4. Runner 46. The waste water entering the waste water diversion channel 46 can be obtained from the waste water outlet 123, and the obtained filtered water is further purified in the filtered water diversion channel 47 through the rear filter element 7 to form pure water more suitable for people to use. It should be noted that the raw water, filtered water, and pure water mentioned in this article are not limited to the composition of water, but are named for the convenience of explaining the water purification process. 2 is called raw water, and the water flowing into the center pipe 21 after being diverted by the central liquid separation membrane tube group 2 is called filtered water (that is, the water obtained by filtering the raw water once), and flows into the waste water after being diverted by the central liquid separation membrane tube group 2 The water in the manifold 22 is called waste water, and the water filtered by the post-filter 7 is called pure water (i.e. the water obtained by secondary filtration of raw water).

In the composite filter element 100 of the embodiment of the present utility model, through the structural design of the composite filter element 100, after the raw water enters the raw water flow channel 101, it can radially pass through the multilayer film formed by winding the multilayer membrane bag 23 components. Most of the water flow entering the raw water channel 101 flows in the circumferential and axial directions, and is dispersed on the outer periphery of the central liquid separation membrane tube group 2. During the circumferential and axial flow, the water washes away the impurities on the surface of the membrane, which can prevent the membrane from Surface clogging improves filtration capacity.

Afterwards, the raw water passes through the multi-layer membrane module in the radial direction, and most of the water flow is close to penetrating the membrane in the normal direction. The positive pressure of the membrane penetration is large, and the flow path of the water flow in the radial direction is short. That is, the filtered water obtained by filtering through the central liquid-separating membrane tube group 2 can flow out from the central liquid-separating membrane tube group 2 very quickly.

Compared with the scheme of passing through the central liquid separation membrane tube group 2 in the axial direction, this scheme greatly reduces the resistance of the filtered water flow and shortens the time for water to flow through the membrane, thereby achieving the purpose of preparing purified water with a large flux and improving water purification efficiency.

Through the setting of the central liquid separation membrane tube group 2 and the waterway conversion cover group 4, the pure water and waste water can be effectively separated, and the rear filter element 7 is further set in the waterway conversion cover group 4 to improve the degree of purification and better Meet people's needs.

It should be noted here that in a conventional purification structure, the filter element with the rear filter element 7 and the filter element with the central liquid separation membrane tube group 2 are usually connected in series, and the two are connected by pipelines. However, this solution is improved in the embodiment of the utility model, and the rear filter element 7 is integrated into the composite filter element 100 by using the water channel conversion cover group 4, which saves pipeline connections, shortens the entire purification path, and saves the cost of the filter element. Moreover, the composite filter element 100 is integrated into one body, which greatly simplifies the structure for the purification system. When the user needs to disassemble and replace the core, the operation is convenient and the user experience is improved.

In some embodiments, as shown in FIG. 2 , the composite filter element 100 also includes a pre-filter 24 , the pre-filter 24 is cylindrical with both ends open, and the pre-filter 24 is arranged on the outside of the diaphragm bag 23 , The raw water channel 101 is annular and surrounds the outside of the pre-filter 24 . Raw water undergoes at least three layers of filtration to form pure water, and the resulting pure water is of higher quality.

Optionally, when a plurality of membrane bags 23 are rolled to form a multi-layer film assembly, the pre-filter 24 can be rolled concentrically with the multi-layer film assembly to form a pre-filter cartridge, which is convenient for installation. The pre-filter 24 can be made of non-woven fabric, PP cotton and carbon fiber, which can purify and filter the raw water in advance, effectively intercepting iron filings, silt, organic matter and residual chlorine in the water.

In some specific embodiments, the pre-filter 24 is overcoated on the multi-layer membrane assembly, and there is no intermediate skeleton between the two, that is, the outer end of the multi-layer membrane assembly is directly attached to the inner wall of the pre-filter 24, which saves parts.

In some embodiments of the present invention, the bottle cap 12 is non-openably connected to the bottle body 11 , for example, the bottle cap 12 can be welded and connected to the bottle body 11 .

In some embodiments of the present utility model, the bottle cap 12 is openably and closably connected to the bottle body 11 , and the water channel conversion cap group 4 is connected between the bottle cap 12 and the central liquid separation membrane tube group 2 . The waterway conversion cover group 4 and the central liquid separation membrane tube group 2 are detachably connected in the housing 1, thereby providing the possibility and convenience for changing the cartridge, and reducing the replacement cost compared with the traditional disposable filter cartridge assembly .

Here, the form of the opening and closing design may be a cover form, a thread connection form, or a plug-in buckle form, which is not specifically limited here. In the example shown in FIG. 2 , the bottle cap 12 is screwed onto the bottle body 11 , and a sealing ring 128 is provided between them. Optionally, the sealing ring 128 is an O-ring, and there is at least one sealing ring 128 .

Further, the water channel switching cap set 4 is connected to the bottle cap 12 , and the water channel switching cap set 4 is rotatable relative to the bottle cap 12 . During the opening and closing process of the openable and closable bottle cap 12, it is inevitable that the bottle cap 12 needs to be tightly closed or loosened by rotation. Can be rotated, just can not cause damage to waterway switching cover group 4. In addition, in the process of pressing and tightening the bottle cap 12, the water channel conversion cap group 4 and the central liquid separation membrane tube group 2 can be compressed to improve the assembly quality of the internal structure. Bottle cap 12 is rotatable.

In the embodiment of the present utility model, as shown in FIG. 5 and FIG. 8 , the plurality of membrane bags 23 of the central liquid separation membrane tube set 2 form a cylindrical shape after winding the central tube set 20 . The unidirectional rolling of a plurality of film bags 23 makes a spiral outer flow channel be formed between the second parts of two adjacent film bags 23, and a spiral inner channel is formed inside the second part of each film bag 23. runner. Advantageously, both the inner flow channel and the outer flow channel are provided with spacers to avoid close contact of the diaphragms.

It is conceivable that when the raw water flows into the central liquid separation membrane tube group 2 in the radial direction, it is filtered through a membrane every time, so the filtering effect of the central liquid separation membrane tube group 2 is guaranteed. During the flow of raw water, most of the impurities are blocked in the outer channel by the diaphragm. Here, when the water flows toward the central tube set 20 , it will also drive the impurities in the outer channel to flow toward the central tube set 20 in a spiral direction, and finally reach the waste water header 22 .

The central liquid separation membrane tube group 2 adopts a side flow water-saving membrane, through which water is fed through the side flow, the flow velocity on the surface of the membrane is increased, a high recovery rate of pure water is ensured, and a long service life of the diaphragm bag 23 is ensured.

Optionally, the central liquid separation membrane tube group 2 may be a reverse osmosis membrane element, or an ultrafiltration membrane module. That is, the membrane bag 23 can be selected from a known reverse osmosis membrane on the market, or an existing ultrafiltration membrane on the market. The principles and techniques of ultrafiltration and reverse osmosis filtration are known to those skilled in the art, and will not be repeated in this utility model.

In some embodiments, the axial end of the central liquid separation membrane tube set 2 is encapsulated by the water channel conversion cover set 4 to prevent raw water from directly flowing from the end face to the central tube set 20 and avoid mixed flow of filtered water and waste water at the end face.

Specifically, as shown in Figure 2, the other axial end of the central liquid separation membrane tube group 2 is sealed by a sealing plate 9, which also prevents raw water from flowing directly from the end face to the central tube group 20, and avoids mixed flow of filtered water and waste water at the end face.

Furthermore, the water channel conversion cover group 4 and the sealing plate 9 are respectively glued to the axial ends of the central liquid separation membrane tube group 2, which is not only convenient for assembly, but also avoids damage to the diaphragm. Optionally, the waterway conversion cover set 4 and the sealing plate 9 are respectively sealed and connected to the end of the central liquid separation membrane tube set 2 by a ring of hot melt adhesive.

Specifically, the central pipe 21 and the waste water header 22 are respectively through pipes, and the cover 9 is provided with a plurality of plugs 91, which are respectively plugged and connected to the ends of the central pipe 21 and the waste water header 22 to play a sealing role. , Avoid mixed flow of filtered water and waste water.

In some embodiments of the present invention, as shown in FIG. 3 , the waterway conversion cover set 4 includes a waterway conversion inlet cover 41 , a waterway conversion inner outlet cover 42 and a waterway conversion outer outlet cover 43 . The waterway conversion inlet cover 41 is covered at the end of the central liquid separation membrane tube group 2. The waterway conversion inlet cover 41 is provided with a waste water inlet 51 connected to the waste water flow chamber 220, and the waterway conversion inlet cover 41 is provided with a connected filtered water flow chamber 210. The filtered water inlet 61. The waterway conversion inner outlet cover 42 is covered on the waterway conversion inlet cover 41, and the filtered water guide channel 47 is defined between the waterway conversion inner outlet cover 42 and the waterway conversion inlet cover 41, and the waterway conversion inner outlet cover 42 is provided with a connection for pure water. Inner cover opening 44 of outlet 122 . The waterway conversion going out cover 43 is covered on the waterway conversion inner outlet cover 42, the outer periphery of the waterway conversion going out cover 43 is connected with the waterway conversion inlet cover 41, the waterway conversion outlet cover 43, the waterway conversion inner outlet cover 42 and the waterway conversion inlet cover 41 A waste water guide channel 46 is defined between them, and an outer cover opening 45 connected to the waste water outlet 123 is defined between the waterway conversion outer cover 43 and the waterway conversion inner outlet cover 42 .

That is to say, waste water can enter the waterway conversion cover set 4 from the waste water flow chamber 220 through the waste water inlet 51 , and filtered water can enter the waterway changeover cover set 4 from the filtered water flow chamber 210 through the filtered water inlet 61 . The waterway conversion inlet cover 41 and the waterway conversion inner outlet cover 42 can separate filtered water and waste water. A filtered water guide channel 47 is defined between the water channel conversion inlet cover 41 and the water channel conversion inner outlet cover 42, and the filtered water flows along the filtered water guide channel 47 to the inner cover port 44, and the inner cover port 44 is connected to the pure water outlet 122 , pure water can flow out from the pure water outlet 122. Between the waterway conversion outgoing cover 43, the waterway conversion inner outlet cover 42 and the waterway conversion input cover 41, a waste water diversion channel 46 is defined, and the waste water flows to the outer cover port 45 along the waste water diversion channel 46, and the outer cover port 45 is connected to the waste water outlet. 123 is connected, and waste water can flow out from waste water outlet 123.

Through the cooperation of the waterway conversion inlet cover 41, the waterway conversion inner outlet cover 42 and the waterway conversion outer outlet cover 43, the filtered water guide channel 47 that can be provided with the rear filter element 7 is defined, and the central liquid separation membrane tube group 2 can also be divided. The discharged waste water and filtered water are directed to the pure water outlet 122 and the waste water outlet 123 respectively, and the structure is simple.

Such a waterway conversion cover set 4 has very strong assembleability, greatly simplifies the assembly process, and shortens the assembly time.

In some specific embodiments of the present invention, as shown in FIG. 9 and FIG. 10 , the waterway conversion inlet cover 41 includes an inlet half cylinder 411 , an outlet half cylinder 412 and a cylinder connecting pipe 413 .

The half cylinder body 411 of the inlet end is open at one end towards the center liquid separation membrane tube group 2, the waste water inlet 51 and the filtered water inlet 61 are arranged on the half cylinder body 411 of the inlet end, and one end of the center liquid separation membrane tube group 2 is fitted on the inlet end On the inner peripheral side of the semi-cylindrical body 411 , the water channel switching outlet cover 43 is connected to the outer peripheral side of the half-cylindrical body 411 at the inlet end.

The outlet half cylinder 412 is open at the end far away from the central liquid separation membrane tube group 2, the outlet half cylinder 412 is separated from the inlet half cylinder 411, and the inner outlet cover 42 of the water channel conversion is connected to the outlet half cylinder 412 The peripheral wall of the filter water outlet 62 is provided on the semi-cylindrical body 412 at the outlet end. The cylinder connecting pipe 413 is connected between the inlet half cylinder 411 and the outlet half cylinder 412 , one end of the cylinder connecting pipe 413 is connected to the filtered water inlet 61 , and the other end is connected to the filtered water outlet 62 .

That is to say, both the half cylinder body 411 at the inlet end and the half cylinder body 412 at the outlet end are open on opposite sides, and the two are connected through the cylinder connecting pipe 413 . The hole connected to the tube connecting pipe 413 on the inlet half cylinder 411 is the filtered water inlet 61 , and the hole connected to the cylinder connecting pipe 413 on the outlet half cylinder 412 is the filtered water outlet 62 . A waste water inlet 51 is provided at the place where the half cylinder body 411 at the inlet end deviates from the cylinder connecting pipe 413 , and the waste water inlet 51 is not connected to the cylinder connecting pipe 413 .

The half cylinder 411 at the inlet end is formed into a cylindrical shape with one end open, so as to facilitate cooperation with the end of the central liquid-separating membrane tube set 2 and increase the sealing reliability of the end of the central liquid-separating membrane tube set 2 . Moreover, the cylindrical half-cylinder body 411 at the entry end can tightly hug the rolled multi-layer film assembly to prevent it from falling apart.

The half-cylinder body 412 at the outlet end is formed into a cylindrical shape with an open end, so that it can be connected with the outlet cover 42 in the waterway conversion for convenience. OK, avoid streaming.

The distance between the outlet half-cylinder 412 and the inlet half-cylinder 411 is to facilitate the flow of waste water. The waste water diversion channel 46 formed at this time is connected with the waste water inlet 51 on the inlet half-cylinder 411. .

It is mentioned here that the waterway conversion outgoing cover 43 is connected to the outer peripheral side of the half cylinder body 411 at the inlet end. On the one hand, it can facilitate positioning and assembly; It can be understood that the water pressure in the raw water flow channel 101 is significantly higher than the internal water pressure in the central liquid separation membrane tube group 2 and the water pressure in the waste water diversion channel 46 due to the large pressure loss in the water filtration process. At this time, the waterway conversion outgoing cover 43 is set on the outer peripheral side of the half cylinder body 411 at the inlet end, and the pressure difference can be used to make the waterway conversion outlet cover 43 close to the outer peripheral side of the half cylinder body 411 at the inlet end, thereby achieving a good seal. Effect.

It can be seen from FIG. 9 and FIG. 3 that a stepped surface is formed on the cylinder wall of the half cylinder body 411 at the inlet end, so as to facilitate positioning with the outlet cover 43 for waterway conversion.

Optionally, the half cylinder body 411 at the inlet end, the half cylinder body 412 at the outlet end, and the cylinder connecting pipe 413 are formed as one piece, so that the structural tightness can be easily ensured.

Certainly, in the embodiment of the present utility model, the semi-cylindrical body 411 at the inlet end, the semi-cylindrical body 412 at the outlet end and the connecting pipe 413 of the cylinder body can also be connected by welding, and even the three can be threaded under the premise of ensuring the sealing performance. Connections, etc., are not limited here.

In the embodiment of the present utility model, as shown in Fig. 3, the water channel conversion inner outlet cover 42 forms an inverted water tank shape, and the water channel conversion outer outlet cover 43 also forms an inverted water channel shape, and the size of the water channel conversion outer outlet cover 43 is larger than that of the water channel conversion inner outlet cover 43. Outlet cover 42, so that the waterway conversion outer cover 43 can be buckled on the waterway conversion inner outlet cover 42, and a certain gap can be formed between the two to form a waste water guide channel 46.

Wherein, in FIG. 3 , the lower peripheral edge of the inner outlet cover 42 of the water channel conversion is connected with the peripheral wall of the outlet half cylinder 412 , and the upper end opening of the inner outlet cover 42 of the water channel conversion constitutes the above-mentioned inner cover opening 44 .

The periphery of the lower end of the waterway conversion outgoing cover 43 is connected with the peripheral wall of the half cylinder body 411 at the inlet end, and the upper end periphery of the waterway conversion outgoing cover 43 is sleeved on the outer side of the upper end periphery of the inner outlet cover 42 of the waterway conversion. The annular mouth of the above-mentioned outer cover mouth 45 is constituted.

Preferably, as shown in FIG. 9 , the radial dimension of the half cylinder body 411 at the inlet end is greater than the radial dimension of the half cylinder body 412 at the outlet end. In this way, the lower end of the waterway conversion cover 43 needs to be larger than the lower end of the waterway conversion inner cover 42, which can facilitate the assembly of the waterway conversion cover group 4.

In a specific embodiment, as shown in FIG. 6 , the thickness of the joint between the outlet half-cylinder body 412 and the inner outlet cover 42 of the waterway conversion is thinned, and the cross-section of the contact surface between the two is formed into a Z shape, which can increase the contact area. , improve the sealing effect.

Optionally, the water channel conversion inner and outlet cover 42 is welded and connected to the water channel conversion inlet cover 41 , for example, the water channel conversion inner and outlet cover 42 is screw welded and connected to the outlet half cylinder 412 . The reason for this arrangement is that the pure water outlet 122 communicates with the inside of the outlet cover 42 in the water channel conversion, and once water leaks, the composite filter element 100 will fail. Therefore, the welding connection can ensure the connection strength and improve the sealing durability.

In a specific embodiment, the waterway conversion outgoing cover 43 is adhesively connected to the waterway conversion inlet cover 41. The reason why the adhesive connection is adopted is that, on the one hand, the process is simple, the cost is low, and the processing is fast; The internal and external pressure difference of 43 guarantees that the waterway conversion outgoing cover 43 can be closely attached to the waterway conversion inlet cover 41.

Specifically, as shown in FIG. 3 , the filtered water flow channel 47 is arranged coaxially with the central liquid separation membrane tube group 2 , and the waste water flow channel 46 is outside the filtered water flow channel 47 . The filtered water filtered out of the central liquid separation membrane tube group 2 is equivalent to a straight line flow to the filtered water guide channel 47, and the volume of the filtered water is usually much larger than that of the waste water, which is beneficial to the circulation efficiency of the filtered water. In addition, such setting will increase the discharge resistance of waste water, and the increase of waste water pressure will prompt more filtered water from waste water to flow to the filtered water guide channel 47 in the central liquid separation membrane tube group 2, thereby improving the purification rate. Such arrangement can facilitate the cross-section of each component of each waterway switching cover group 4 to be basically circular, which is convenient for manufacture.

In addition, in the structure of the above-mentioned waterway conversion cover group 4, when the waterway conversion cover group 4 is assembled, it is assembled from the inside to the outside, and the rear filter element 7 is arranged in the filtered water guide channel 47 in the center, and the rear filter element 7 is assembled and positioned. easier. In FIG. 3 , the diameter of the part of the filtered water guide channel 47 between the semi-cylindrical body 412 at the outlet end and the outlet cover 43 of the water channel is relatively large, and the installation of the rear filter element 7 will not affect the water flow.

Of course, in other embodiments of the present utility model, the waterway conversion cover group 4 also can adopt other shapes, such as the waterway conversion cover group 4 forms a barrel shape, and a dividing plate is separated in the middle of the barrel shape (similar to passing through a dividing plate in the middle of a mandarin duck hot pot) Separate), half of the barrel is used to flow through waste water, and the other half is used to circulate filtered water.

In some examples of the present utility model, as shown in Fig. 10 and Fig. 11, the side of the waterway conversion inlet cover 41 facing the central liquid separation membrane tube group 2 is provided with a waste water connection pipe 5 and a filtered water connection pipe 6, and the waste water connection pipe 5 The nozzle is the waste water inlet 51, and the nozzle of the filtered water connecting pipe 6 is the filtered water inlet 61. The waste water circulation chamber 220 is connected with the waste water connecting pipe 5 , and the waste water flows out from the waste water flowing chamber 220 and enters the waterway switching cover group 4 along the waste water connecting pipe 5 . The filtered water flow cavity 210 communicates with the filtered water connection pipe 6 , and the filtered water flows out from the filtered water flow cavity 210 and then enters the waterway conversion cover set 4 along the filtered water connection pipe 6 .

Specifically, as shown in Figure 3, the central pipe 21 is plugged on the filtered water connecting pipe 6, and the waste water header 22 is plugged on the waste water connecting pipe 5, so that the waterway conversion cover group 4 and the center liquid membrane pipe group 2 have the same The function of centering prevents deflection, and it can also be connected through the cannula to ensure the sealing of the connection and avoid cross-flow.

Specifically, there are multiple waste water connection pipes 5 , and multiple waste water headers 22 are plugged into the waste water connection pipes 5 in one-to-one correspondence. The one-to-one corresponding setting can facilitate the positioning of the central tube group 20 .

Of course, the structure of the present utility model is not limited thereto. For example, under the premise of ensuring the sealing performance, the filtered water connecting pipe 6 and the waste water connecting pipe 5 can also be canceled, the central pipe 21 is directly inserted into the filtered water inlet 61, and the waste water header 22 is directly inserted into the Connected in the waste water inlet 51.

In some embodiments of the present invention, as shown in Figure 3, the bottle cap 12 is provided with an inner connecting pipe 124 and an outer connecting pipe 125, the outer connecting pipe 125 is overlaid on the inner connecting pipe 124, and the inner outlet cover 42 of the water channel conversion is connected to the inner connecting pipe 124 , the waterway conversion outlet cover 43 is connected on the external connecting pipe 125 . In this way, the inner cover opening 44 can be communicated with the pure water outlet 122 conveniently, and the outer cover opening 45 can be communicated with the waste water outlet 123 conveniently. Wherein, there is a space between the outer connecting pipe 125 and the inner connecting pipe 124, which can be used for water circulation.

Specifically, as shown in FIG. 3 , the waterway conversion inner outlet cover 42 forms a tubular shape at the end far away from the central liquid separation membrane tube group 2, and this tube is called the inner end tube 421, and the inner end tube 421 is sleeved on the inner connecting tube 124. An inner sealing ring (not shown) is arranged between the two, which is conducive to improving the sealing performance.

Specifically, as shown in FIG. 3 , the waterway conversion outgoing cover 43 forms a tubular shape at the end away from the central liquid separation membrane tube group 2, and this tube is called the outer end tube 431, and the outer end tube 431 is sleeved on the outer connecting tube 125. An outer sealing ring (not shown in the figure) is arranged between, which is conducive to improving the sealing performance.

In some embodiments of the present invention, the post-filter 7 is a cake-shaped or rod-shaped carbon core. The carbon core can effectively remove organic matter, residual chlorine and other radioactive substances in the water, and can also intercept particles larger than 10-20 microns in the liquid, which has a dual effect of purifying and filtering water. The rear filter element 7 is formed into a cake shape or a rod shape, which is convenient for assembly and fixing.

Of course, in the embodiment of the present utility model, the rear filter element 7 can also be formed into other shapes, using other filter materials, such as adopting a multi-layer membrane structure, or adopting a cylindrical structure so that the filtered water passes through the filter from the inside to the outside, and no specific details are given here. limit.

Referring to FIG. 1 , the water inlet pipe 301 is connected to the raw water inlet 121 on the housing 1 , the waste water pipe 302 is connected to the waste water outlet 123 on the housing 1 , and the pure water pipe 303 is connected to the pure water outlet 122 on the housing 1 . The booster pump 304 is connected in series on the water inlet pipe 301, and the booster pump 304 can increase the pressure of the water. The water inlet valve 305 is connected to the water inlet pipe 301 in series, and the water inlet valve 305 can control the on-off of the water inlet pipe 301 . The waste water valve 306 is connected to the waste water pipe 302 in series, and the waste water valve 306 can control the on-off of the waste water pipe 302 .

That is to say, when the water inlet valve 305 is opened, water can flow from the water inlet pipe 301 to the raw water inlet 121. When the water flows to the booster pump 304, the booster pump 304 can increase the pressure of the water, which is beneficial for the composite filter element 100 to obtain high-pressure water, thereby For water purification and filtration, after water flows into the composite filter element 100 from the raw water inlet 121, the composite filter element 100 purifies and filters the water, and separates the water into pure water and waste water, and the pure water flows from the pure water outlet 122 to the pure water pipe 303, thereby facilitating Used by users, the waste water flows from the waste water outlet 123 to the waste water pipe 302 . When the waste water valve 306 is opened, waste water can be discharged along the waste water pipe 302, which is conducive to the discharge of waste water. When the waste water valve 306 is closed, water can only flow out from the pure water pipe 303, thereby increasing the pressure of the water in the composite filter element 100. Improve the water purification and filtration efficiency of the composite filter element 100, reduce the discharge of waste water, and save water resources.

According to the water purifier 1000 of the embodiment of the present utility model, through the design of the flow channel of the composite filter element 100, the water purification efficiency of the composite filter element 100 is improved, and large-flux water purification can be realized. Water can be purified and filtered multiple times in the composite filter element 100, which can improve the quality of water purification. The composite filter element 100 is integrated and easy to replace. Through the design of the flow path of the water purifier 1000, the water purifier 1000 can have a relatively simple water system, simple control, and convenient operation.

In some embodiments of the present utility model, as shown in FIG. 1 , the water purifier 1000 further includes a pre-filter 307 connected in series to the water inlet pipe 301 to further improve the filtering effect. Moreover, a pre-filter 307 is arranged upstream of the composite filter element 100 to reduce the entry of large particles of impurities and prolong the service life of the composite filter element 100 .

Optionally, the pre-filter 307 includes a pre-filter housing and a filter screen, the pre-filter housing can be opened and closed, and the filter screen is detachably arranged in the pre-filter housing. The filter screen can remove impurities such as large particles, suspended solids, rust, and sand in the water, and reduce the purification and filtration pressure of the composite filter element 100 . It can be understood that the pre-filter 307 can also be filter cotton, other filter elements, etc., which is not limited here. Wherein, the opening of the pre-filter shell can facilitate the installation of the filter screen in or removal from the pre-filter shell, and the closing of the pre-filter shell can limit the position of the filter screen to prevent the filter screen from loosening and reduce the filtering effect. The disassembly and assembly of the filter screen can facilitate the cleaning of the filter screen, preventing excessive impurities from clogging the position of the filter screen and increasing the resistance of water circulation.

Optionally, as shown in FIG. 1 , the pre-filter 307 is connected upstream of the water inlet valve 305 . Here, upstream refers to the direction of water flow, and the position that flows through first among the two positions is upstream. The pre-filter 307 is arranged upstream of the water inlet valve 305, and the pre-filter 307 can filter some impurities to prevent excessive impurities from entering the water inlet valve 305 and blocking the water inlet valve 305.

Optionally, as shown in FIG. 1 , the water first flows through the pre-filter 307 on the water inlet pipe 301, and then flows through the water inlet valve 305, and then the water through the water inlet valve 305 flows to the booster pump 304. In this way, the pre-filter The filter 307 can simultaneously protect the water inlet valve 305 and the booster pump 304 to prevent the water inlet valve 305 and the booster pump 304 from being blocked by impurities.

It should be noted that the water purifier 1000 can withstand a certain water pressure. When the water pressure is too high, the water purifier 1000 is easy to be damaged. It is necessary to avoid the water pressure of the water purifier 1000 being too high. In some embodiments of the present invention, as shown in FIG. 1 , the water purifier 1000 further includes a high-voltage switch 308 connected in series to the pure water pipe 303 , and the high-pressure switch 308 is electrically connected to the water inlet valve 305 . That is to say, the high pressure switch 308 can detect the water pressure of the pure water pipe 303 and can set a preset value. When the water pressure of the pure water pipe 303 is higher than the preset value, the high pressure switch 308 can control the water inlet valve 305 so that The water valve 305 is closed, so that the water purifier 1000 stops working.

In some embodiments of the present invention, as shown in Figure 1, the water purifier 1000 also includes a one-way valve 309 connected in series on the pure water pipe 303, so that the water in the pure water pipe 303 passes through the one-way valve 309 Can not backflow after, can prevent backflow in composite filter element 100.

In some embodiments of the present invention, as shown in FIG. 1 , the water purifier 1000 further includes a faucet 300 connected to the end of the pure water pipe 303 , and the water flows out through the faucet 300 to be taken by the user. Here, the one-way valve 309 is arranged upstream of the faucet 300. When the water intake is stopped, part of the water can be retained from the one-way valve 309 to the position of the faucet 300, which can facilitate the user to open the faucet 300 and the water can flow out without waiting. The user's experience is improved, and at the same time, impurities in the air can be prevented from entering the pure water pipe 303 and blocking the pure water pipe 303 .

Optionally, the switch of the faucet 300, the water inlet valve 305 and the booster pump 304 are electrically connected, and when the water faucet 300 is turned on, the water inlet valve 305 is also opened, the booster pump 304 starts to work, and the composite filter element 100 starts to purify the filtered water, which is easy to operate , Easy to control.

In some embodiments of the present utility model, the waste water valve 306 is an adjustable waste water valve 306, and the flow rate of waste water is controlled by adjusting the size of the waste water valve 306 valve. When the large flow of water flows through the waste water valve 306, impurities are easily washed away to prevent the waste water valve 306 from failing.

Optionally, the waste water valve 306 is cumulative flushing or standby flushing, which can allow the waste water to flow out after it has accumulated to a certain extent, avoid frequent switching and reduce filtration efficiency, and also avoid accumulation of impurities, ensuring the service life of the membrane bag 23 . Certainly, the waste water valve 306 may also have other embodiments, which are not limited here.

Other components of the water purifier 1000 according to the embodiment of the present utility model, such as the booster pump 304 , and operations are known to those skilled in the art, and will not be described in detail here.

In the description of this specification, descriptions referring to the terms "some embodiments", "some examples" or "optionally" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in the present application. Novel at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. a kind of water purifier characterized by comprising

Composite filter element, the composite filter element include:

Shell, the shell are equipped with original water inlet, pure water outlet and wastewater outlet；

Center liquid separation membrane tube group, the center liquid separation membrane tube group are located in the shell, the periphery of the center liquid separation membrane tube group Raw water runner is limited between wall and the shell, the original water inlet is connected to the raw water runner, the center liquid separation membrane tube Group includes: central tube group and multiple diaphragm bags, and the central tube group includes the waste water collector of central tube and multiple settings spaced apart, Multiple waste water collectors are arranged around the central tube, and the tube wall of the central tube was equipped with drainage and enters hole, the waste water The tube wall of collector is equipped with waste water and enters hole, and the diaphragm bag has the first part being located inside the central tube group and is located at institute The second part outside central tube group, each waste water collector and the central tube are stated by of diaphragm bag described at least one A part separates, and the second part of multiple diaphragm bags forms the plural layers being centered around around the central tube group Component limits filtered water stream cavity in the central tube, limits waste water flowing lumen in the waste water collector；

Lid group is converted in water route, and the water route conversion lid group is located in the shell, is led in the water route conversion lid group equipped with waste water Runner and excessively drainage honeycomb duct, the both ends of the waste water honeycomb duct are respectively communicated with the waste water flowing lumen, the wastewater outlet, institute The both ends for stating drainage honeycomb duct are respectively communicated with the filtered water stream cavity, the pure water outlet；

Postposition filtration members, the postposition filtration members are located at described cross in drainage honeycomb duct；And

Water inlet pipe, the water inlet pipe connect the original water inlet on the shell；

Waste pipe, the waste pipe connect the wastewater outlet on the shell；

Pure water pipe, the pure water pipe connect the pure water outlet on the shell；

Booster pump, the booster pump are connected in series on the water inlet pipe；

Inlet valve, the inlet valve are connected in series on the water inlet pipe；

Wastewater valve, the wastewater valve are connected in series on the waste pipe.

2. water purifier according to claim 1, which is characterized in that further include: prefilter, the prefilter series connection connect It connects on the water inlet pipe.

3. water purifier according to claim 2, which is characterized in that the prefilter is connected to the upper of the inlet valve Trip.

4. water purifier according to claim 2, which is characterized in that the prefilter includes: preposition filter housing and filter screen, The preposition filter housing is retractable, and the filter screen is removably disposed in the preposition filter housing.

5. water purifier according to claim 1, which is characterized in that further include: the height being connected in series in the pure water pipe It compresses switch, the high-voltage switch gear and the inlet valve electrical coupling.

6. water purifier according to claim 1, which is characterized in that further include: the list being connected in series in the pure water pipe To valve.

7. water purifier according to claim 1, which is characterized in that further include: it is connected to the water of the end of the pure water pipe Faucet.

8. water purifier according to claim 1, which is characterized in that the wastewater valve is adjustable wastewater valve, the wastewater valve For accumulative system flushing or standby flushing.

9. water purifier according to claim 1, which is characterized in that convert lid group and include: in the water route

Water route is converted into lid, and the water route is converted into the end covered in the center liquid separation membrane tube group, the water route convert into Cover the filtering water inlet for being equipped with the waste water inlet for being connected to the waste water flowing lumen and the connection filtered water stream cavity；

Go out to cover in the conversion of water route, goes out to cover in the water route conversion and convert in the water route into covering, go out in the water route conversion Lid and the water route convert into limited between lid it is described cross drainage honeycomb duct, go out to cover in the conversion of the water route and be equipped with connection institute State the inner cover mouth of pure water outlet；

The outgoing lid of water route conversion, the water route conversion is outgoing to be covered in the conversion of the water route to go out to cover, and the water route conversion is outer The outer periphery and the water route covered out are converted into Gai Xianglian, and the water route conversion is outgoing to cover, goes out lid and institute in the conversion of the water route It states water route to convert into the waste water honeycomb duct is limited between lid, goes out to cover in the outgoing lid of water route conversion and water route conversion Between limit the outer cover mouth for connecting the wastewater outlet.

10. water purifier according to claim 1, which is characterized in that the diaphragm bag is reverse osmosis membrane, the reverse osmosis membrane Volume is equipped with preposition filter cylinder on the outside of the plural layers component rolled.